as will rupert murdoch and his son james, here in london in the afternoon. that is latest from here, back to you, jenna. jenna: we'll continue to watch the developments, amy thank you very much for that. a major search is underway for a missing mother of triplets, where she was last seen and who police are calling a person of interest in her disappearance straight ahead. also people all across this country are facing sorbgs well, dangerous heat. one of the things we hear a lot of is stay hydrated, drink eight glasses of water aeu day. is there a scientific base for doing that? how much do we really need? what we can do to prevent heatstroke. we'll tell you all that straight ahead. are you receiving a payout from a legal settlement or annuity over 10 or even 20 years? call imperial structured settlements. the experts at imperial can convert your long-term payout into a lump sum of cash today. jon: the son and girlfriend of a prominent pharmaceutical executive are both dead, events that happened within five days of each other in separate incidents at the ceo's